Email Verification

Email Verification for High-Growth Startups

High-growth startups move quickly: running campaigns, onboarding customers, and hiring aggressively. Invalid or fake email addresses waste ad spend, slow down sales cycles, and risk domain health.

We Verify Startup Data Others Can’t

SMTP and Catch-All Verification
Validate prospect, signup, and partner emails that generic tools flag as “unknown.”
Real-Time Results, No Emails Sent
Get clean data instantly so campaigns and sequences keep moving.
7-Step Verification Process
Includes SMTP, DNS, MX, and pattern analysis for the most accurate results.
Pricing Icon
Built for Scale
Ideal for hypergrowth teams running frequent campaigns and generating thousands of leads per month.

Keep Momentum Without Risking Deliverability

When you’re scaling fast, you can’t afford bad lists that harm reputation or waste budget. Verified data keeps outreach safe and effective.

1B+

emails verified

99%

SMTP verification accuracy

99%

catch-all verification accuracy

Get Over 50% More Valid Leads

Generic verification tools discard catch-all domains, including those of high-value prospects. Listmint verifies them in real time so you can widen your funnel and hit aggressive growth targets.
Scale Outreach with Confidence
Proof of Results: 84% Valid vs 55% Industry Average
Other tools only confirm about 55% of contacts, leaving nearly half your audience unreachable. Listmint customers see up to 84% valid results, meaning more opportunities and faster pipeline generation.
Real-Time API for Product Signups and Forms
Validate emails as they’re collected from signup forms, trials, and events so that only real users enter your CRM.
Support, Dashboards, and Reporting
Track verification results across campaigns and share performance metrics with your team. Our support team helps maintain high data quality during rapid scale.

Verify all your emails, even Catch-alls in real-time with our Email Verification Software.

Create an account for free.

More Resources